using SystemWindowsForms;
获取屏幕分辨率
int SH = ScreenPrimaryScreenBoundsHeight;
int SW = ScreenPrimaryScreenBoundsWidth;
获取窗口居中Top和Left
int thisH=;
int thisW=;
int SH = (ScreenPrimaryScreenBoundsHeight thisH) / ;
int SW = (ScreenPrimaryScreenBoundsWidth thisW) / ;